Suppose that the current one-year rate and expected one-year T-bill rates over the following three years the years 2, 3, and 4, respectively) are as follows: IRI1.954, E(21) -3.859, E(31) - 5.59%, E(41) 7.5946 Using the unbiased expectations theory, calculate the current (long-term) rates for fouryear-maturity Treasury securities (Write your answer in percentage and round it to 2 decimal places) current rate for three-year maturity